lock down片语动词

封锁、封城、实施禁闭可拆开

Police locked down the entire building after the alarm went off.

警报响起后，警方封锁了整栋大楼。

敲定、确定、锁定口语，可拆开

We need to lock down the budget before the end of the month.

我们必须在月底前把预算敲定。

锁紧、固定可拆开

Lock down the hatches before the storm hits.

暴风雨来临前先把舱门锁紧。

封城、封锁、禁足

The city went into lockdown for three weeks last spring.

去年春天这座城市封城了三个星期。

戒备封闭、禁闭

The school was placed on lockdown after the threat was reported.

接获威胁通报后，学校进入封闭戒备状态。